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Stopper

Ashley Stopper

Jam

DiagramsHow to tie it

Does not pick a knot

This page does not pick a knot for you. DNA, molecules, quantum braids and vortices stay off Decide.

Finished structure

No drawing of this exact knot yet. The written steps are the reference.

Failure modes

When this family fails, it fails as these. The recovered end still outranks the name.

Stopper family

Bulk at the tail, larger than the opening — not a join.

  • !Body smaller than the block or fairlead after dress
  • !Asked to join two ropes
  • !Figure-8 used in HMPE where Estar extra turns were the stopper, or Ashley left as a two-lobe overhand
Fails when
  • !The working end is not inside the loop when the standing part is pulled, so the loop closes on nothing and a plain overhand is left
  • !The standing part was pulled before the overhand was snug, and the underside shows two lobes instead of three
  • !The knot is loose, or too small for the opening, and starts to pull into the block or fairlead under load
Geometry

  • Left as a two-lobe overhand

    Pulls through the block — this is not an Ashley yet

    The third lobe is the stopper · step 03

  • Undersized or loose body

    Pulls through the opening

    Size after dress is the job · step 04

  • Asked to join two ropes

    A stopper is not a bend

    Pick a sheet bend or Zeppelin if you needed a join · step 04

If you saw this

  • Stopper pulls through or looks like an overhand

    Check

    • ?Three lobes on the underside
    • ?Larger than the opening

    Then

    • →Finish the third lobe
    • →Retie larger

  • Left as a two-lobe overhand

    Check

    • ?Pulls through the block — this is not an Ashley yet
    • ?Inspect step 03

    Then

    • →Retie. Do not dress a defective structure and call it seated.

  • Undersized or loose body

    Check

    • ?Pulls through the opening
    • ?Inspect step 04

    Then

    • →Retie. Do not dress a defective structure and call it seated.

  • Asked to join two ropes

    Check

    • ?A stopper is not a bend
    • ?Inspect step 04

    Then

    • →Retie. Do not dress a defective structure and call it seated.
Same family

Same failure class, different geometry. Open the plates — Diagnose still starts from the symptom.

This failed — start Diagnose

What holds it

  • ·A stopper is a bulk knot. It bears on a hole, a device, or the hand (heaving line).
  • ·Figure-eight stopper and figure-eight loop share a body and split a job. That is a family identity, not a rating.

What topology does not predict

  • ·Bulk vs security on HMPE is material. EStar exists because figure-eight can walk on slick line — that is cited practice, not an invariant.
  • ·Heaving-line mass is a throwing job, not a topological one.
  • ·No strength retention is computed here.

Not for

  • ·Joining two ropes
  • ·A load-bearing eye
  • ·A tiny stopper (figure-8 is smaller)
  • ·Any load-bearing join

Same pattern, different job

No sourced twin among these knots. Related knots stay on the Library card.

Sources